LED显示屏高光效高画面填充比光学设计与研究

田志辉; 王瑞光; 陈宇; 苗静

doi:10.3788/fgxb20143502.0251

您当前的位置：

首页 >

文章列表页 >

LED显示屏高光效高画面填充比光学设计与研究

发光学应用及交叉前沿 | 更新时间：2020-08-12

- LED显示屏高光效高画面填充比光学设计与研究
- Optical Design and Research of High Optical Efficiency and High Filling Ratio of LED Display Screen
- 发光学报 2014年35卷第2期页码：251-256
- 作者机构：
  
  1. 中国科学院长春光学精密机械与物理研究所, 吉林长春 130033
  2. 长春希达电子技术有限公司, 吉林长春 130103
- 作者简介：
- 基金信息：
  
  国家科技支撑支持计划基金（2009BAE73B01）资助项目()
- DOI：10.3788/fgxb20143502.0251
  中图分类号： O432.2
- 收稿日期：2013-11-23，
  
  修回日期：2013-12-20，
  
  纸质出版日期：2014-02-03
- 稿件说明：
移动端阅览
田志辉, 王瑞光, 陈宇等. LED显示屏高光效高画面填充比光学设计与研究[J]. 发光学报, 2014,35(2): 251-256

TIAN Zhi-hui, WANG Rui-guang, CHEN Yu etc. Optical Design and Research of High Optical Efficiency and High Filling Ratio of LED Display Screen[J]. Chinese Journal of Luminescence, 2014,35(2): 251-256
田志辉, 王瑞光, 陈宇等. LED显示屏高光效高画面填充比光学设计与研究[J]. 发光学报, 2014,35(2): 251-256 DOI： 10.3788/fgxb20143502.0251.

TIAN Zhi-hui, WANG Rui-guang, CHEN Yu etc. Optical Design and Research of High Optical Efficiency and High Filling Ratio of LED Display Screen[J]. Chinese Journal of Luminescence, 2014,35(2): 251-256 DOI： 10.3788/fgxb20143502.0251.

摘要

针对传统LED显示屏光能利用率和图像画面填充比低的缺点，基于非成像光学理论，提出了一种提高光能利用率和画面填充比的全彩LED显示模块结构系统和设计方法。利用复合抛物面集光器CPC对LED管芯发出光线的发散角进行变换压缩，从而避免了外表面全反射损耗，大幅度提高了系统的光能利用率。利用积分方腔匀光原理和散射元件对光能的二次分配，提高了显示屏的画面填充比、单位像素均匀度及基色复用面积。作为实例，根据上述方法设计了一个P10 mm全彩LED显示模块，利用光学设计软件LIGHTTOOLS对该显示模块系统进行了仿真建模和光线追迹，并对设计结果进行了分析。结果表明，系统光能利用率大于70%，画面填充比接近100%，单位像素区域内均匀度好于85%。显示模块具有能量利用率高、高画面填充比、显示效果均匀柔和、易于生产和装调的优点。

Abstract

In traditional LED display screen

optical energy utilization rate and imaging filling ratio are very low. Based on the theory of non-imaging optics

a structure system and a design method are developed to improve optical energy utilization rate and imaging filling ratio of full-color LED display. Using compound parabolic concentrator (CPC)

light diverging angle emitted from LED chips is transformed and compressed. Therefore

total reflection loss on external surface of display module can be avoided. Accordingly

optical energy utilization rate of display system is greatly improved. Based on uniform lighting principle of integrator-rod and light distribution principle of scattering

imaging filling ratio

pixel uniformity and primary color multiplexing area of LED display screen are improved. According to the above method

a P10 mm full-color LED display module is designed. Using LIGHTTOOLS software

the display module system is simulated and analyzed. The simulation results show that

optical energy utilization rate of system is higher than 70%

imaging filling ratio closes to 100%

uniformity of unit pixel area is better than 85%. The display module has the advantages of high energy utilization rate

high imaging filling ratio

uniform and soft showing

easy manufacturability.

关键词

Keywords

references

Deng Y C, Wang R G, Chen Y, et al. Rapid calculation of LED display color gamut boundary based on CORDIC iteration method [J]. Chin. J. Lumin.(发光学报), 2013, 34(4):529-534 (in Chinese). [2] Zhao Z Q, Wang R G, Zheng X F, et al. Measurement of chroma of LED displays with color CCD camera [J]. Opt. Precision Eng.(光学精密工程), 2013, 21(3):575-582 (in Chinese). [3] Gui J Z, Chen Y, Miao J, et al. Luminance uniformity evaluation for LED display panel based on HVS [J]. Chin. J. Liq. Cryst. Disp.(液晶与显示), 2012, 27(5):658-665 (in Chinese). [4] Song C, Wang R G, Chen Y, et al. Fast calculation of color gamut boundary for LED display panel [J]. Chin. J. Lumin.(发光学报), 2013, 34(7):924-929 (in Chinese). [5] Li S, Wang R G, Yan F. Full-color LED display of traffic guidance fiber transmission system [J]. Opt. Precision Eng.(光学精密工程), 2012, 20(8):1854-1861 (in Chinese). [6] Ding B X, Zheng X F, Chen Y, et al. Revision of LED display images acquired by CCD camera [J]. Opt. Precision Eng.(光学精密工程), 2013, 21(5):1318-1325 (in Chinese) [7] Zhao Z Q, Wang R G, Zheng X F, et al. Systemic accuracy analysis of LED displays based on visual perception [J]. Chin. J. Liq. Cryst. Disp.(液晶与显示), 2012, 27(3):324-331 (in Chinese). [8] Zhao Z Q, Wang R G, Zheng X F, et al. Color gamut correction of LED displays [J]. Chin. J. Liq. Cryst. Disp.(液晶与显示), 2013, 28(1):92-98 (in Chinese). [9] Ning L, Shi Y S, Shi Y H, et al. Influence of package structure on LED light extraction [J]. Chin. J. Liq. Cryst. Disp.(液晶与显示), 2010, 25(6):822-825 (in Chinese). [10] Cho J Y, Byeon K J, Lee H. Forming the graded-refractive-index antireflection layers on light-emitting diodes to enhance the light extraction [J]. Opt. Lett., 2011, 36(16):3203-3205. [11] Roland W, Juan C M, Pablo B. Nonimaging Optics [M]. Amsterdam: Elsevier Academic Press, 2005:45-47. [12] Roland W. Dielectric compound parabolic concentrators [J]. Appl. Opt., 1976, 15(2):291-292. [13] Tian Z H, Liu W Q, Feng R, et al. Laser display system based on DLP projection style [J]. Chin. J. Liq. Cryst. Disp.(液晶与显示), 2007, 22(3):315-319 (in Chinese).

浏览量

140

下载量

CSCD

文章被引用时，请邮件提醒。

提交

工具集

关联资源

LED显示屏相机采集的渐晕校正

基于LED电脉冲响应的 LED显示屏像素灰度校正方法